Sino-foreign joint ventures in Yuyao City Metal Company Limited Hongfeng Yuyao City chang - controlled engineering equipment at the plant seven Millennium old Hemudu Culture Yuyao domain. Professional in the central air-conditioning, heating, ventilation system automation control, sets product research, manufacturing, marketing integration, have a pool of high-quality, electronic, mechanical field technicians. Production in the central air-conditioning, the end LCD temperature controller, the mechanical film box temperature controller, proportional-integral electronic temperature control device, Valve (DN32 - GLOBE) has been sold in China and have been well received by users, and possess a strong after-sales service and technical support capabilities, adhere to the fundamental quality of the product, HKR with technology for the purpose of the spirit and constantly blaze new trails, continuously for all users satisfied with the products and services and make unremitting efforts to struggle!